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the reference of present pos
壓縮空氣
經(jīng)控制和／或增壓后的空氣。
彈
過濾器的一個裝置。
伸出來。
氣孔，
移位，
用于改變現(xiàn)在位
英漢對照民用航空詞典 B OEING
TECHNICAL DICTIONARY 116
POTENTIOMETER, An electrical device for changing
the voltage supply to an electrical circuit component.
r
bly for operation of flight controls.
OWER LEVER ANGLE, The angular scale on the
main engine control for showing movement of the power
hrottle) lever.
OWER MANAGEMENT CONTROL, An electronic
ngine control.
OWER TRANSFER UNIT, A hydraulic motor/pump for
upplying hydraulic power to components when normal
RECOOLER, A heat exchanger in the pneumatic
lied
作動筒，
件，
油門桿角度，
主發(fā)動機控制上用以指示油門桿運動的角刻度。
動力管理控制，
控制發(fā)動機的電子裝置。
力轉(zhuǎn)換裝置，
當無正常的液壓來源可供使用時，用來向部件提供液壓
馬達／泵。
冷器，
中的一個熱交換器。它將發(fā)動機引氣冷卻后
供給氣源總管。
POWER CONTROL ACTUATOR, A hydraulic actuatoassem
POWER CONTROL UNIT, A hydraulic actuator assembly for operation of flight controls.
P
(t
P
e
P
s
supply is not available.
P
system for cooling engine bleed air before it is suppto the pneumatic manifold.
分壓器，
用來改變向電路部件所提供之電壓的電氣裝置。
動力控制
用以飛行操縱工作的液壓作動筒組件。
動力控制組
用以飛行操縱工作的液壓作動筒組件。
動
動力的液壓
預(yù)
在氣源系統(tǒng)
英漢對照民用航空詞典 B OEING
TECHNICAL DICTIONARY 117
PRECISION APPROACH PROCEDURE, A standard
edure in which an electronic
lide slope/glide path is provided; e.g., ILS/MLS and
PAR.
RESSURE, Force per unit area usually measured in
ounds per square inch (psi).
RESSURE ALTITUDE, The altitude displayed when
e barometric pressure on the altimeter is set to 29.92
RESSURE REGULATING AND SHUTOFF VALVE, A
alve in the pneumatic system for regulating bleed air
pressure from the engine to the pneumatic manifold.
RINTED CIRCUIT CARD, A plastic or fiberglass card
ith electronic components and copper strips forming a
ircuit.
RIORITY VALVE, A valve in the hydraulic system for
ROCEDURE TURN, A maneuver where it is
lane
proach course.
精密進近程序，
己提供有電子下滑道／下滑航徑的標準儀表進近程序。
如：儀表著陸系統(tǒng)／微波著陸系統(tǒng)，以及精密進近雷達。
壓力，
單位面積上的力。通常用磅／平方英寸（psi）來度量。
壓力高度，
當高度表上的氣壓調(diào)至29．92英寸汞柱時顯示的高度。
力調(diào)節(jié)和關(guān)斷活門，
氣源系統(tǒng)中用以調(diào)節(jié)從發(fā)動機到氣源總管的引氣壓力
的活門。
刷電路板，
由電子部件和銅絲所組成電路的塑膠或纖維玻璃制
薄板。
先活門，
，用來使各部件照合適順序操作的活門。
序轉(zhuǎn)彎，
后進近航道時所做的機動動作。
instrument approach proc
g
P
p
P
th
inches of mercury.
P
v
P
w
c
P
operation of components in proper sequence.
P
necessary to reverse direction to establish the airp
on the final ap
壓
印
優(yōu)
液壓系統(tǒng)中
程
在飛機必須反向建立最
英漢對照民用航空詞典 B OEING
TECHNICAL DICTIONARY 118
PROXIMITY SENSOR, An electromagnetic dsenses the po
evice that
sition of a moving actuator. The sensor
as two or three wires.
ROXIMITY SENSOR ACTUATOR, A steel plate
cated on a moving component for operation of
roximity sensor.
ROXIMITY SWITCH, A printed circuit card for
transmitting sensor signals to indicating lights and
鄰近傳感器，
能夠感知運動中的作動筒位置的電磁裝置。該傳感器
有兩或三根電線。
鄰近傳感器作動器，
位于一個運動部件上，用以操作鄰近傳感器的鋼板。
近電門，
傳感器信號傳輸給指示燈和電路的印刷電路板。
h
P
lo
p
P
circuits.
鄰
用以將
英漢對照民用航空詞典 B OEING
TECHNICAL DICTIONARY 119
PRSOV, SEE - PRESSURE REGULATING AND SHUTOFF VALVE
TU, SEE - POWER TRANSFER UNIT
removal of dirt from the air cleaner.
n
QAD, SEE - QUICK-ATTACH-DETACH
ICK ENGINE CHANGE
height above airport elevation.
NE, Altimeter setting 29.92 inches of mercury, 1013.2
QNH, Altimeter setting which causes altimeter to read
height above mean sea level.
活門，
P
PURGE VALVE, A valve in the pneumatic system for
PYLON, A structural component for supporting aengine from the wing.
Q
QEC, SEE - QU
QFE, Altimeter setting which causes altimeter to read
Q
Hectopascals or 1013.2 millibars.
調(diào)壓和關(guān)斷
見 Pressure Regulating and Shutoff Valve． 動力轉(zhuǎn)換裝置，
　
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